Other compounds
Alpha-lipoic acid
A substance the body makes itself. Cells use it to make energy – studied as an antioxidant and for nerves and blood sugar.
133 products from US online stores, sorted by what 300 mg of alpha-lipoic acid costs – not by the price per pack.
4.5¢Lowest cost
per 300 mg alpha-lipoic acid
- Prices checked Nov 1, 2026, US
- No paid placements
What does 300 mg mean?
- alpha-lipoic acid per serving in most of the products we checked
- 100–600 mgalpha-lipoic acid per serving in most of the products we checked
- 300 mg is about one serving: half of the 133 products we checked have up to 300 mg per serving, the other half more.
- There’s no official daily amount for alpha-lipoic acid.
We compare by 300 mg only so products line up – it’s not a recommendation. Not medical advice.
Where products miss quality points
How the 133 products score
- Very good 90+: 2
- Good 75+: 129
- Fair 60+: 2
- Low under 60: 0
- have no seal from an independent testing program
- 98%have no seal from an independent testing program10 of 30 testing points for GMP, 15 for the 17 whose label says “third-party tested”
The full 30 testing points need an independent test. Every supplement sold in the US is made under the FDA’s GMP rules – the maker checks its own products, which gives 10 points. A seal from a testing program like NSF, USP or Informed Choice means a lab outside the company checks that what’s inside matches the label. Most brands don’t take part. That doesn’t make a product bad – without a seal, a clean product still gets up to 80.
We find seals on the label and in NSF’s public lists. USP and Informed Choice don’t let us search their lists automatically, so a seal that’s only in their lists can be missing. How the score works
Pack size
Compare packs of a similar size.
All sizes in one list can affect the results – big packs usually cost less per 300 mg. Pick a size above to compare packs that are alike.
133 products · cheapest per 300 mg alpha-lipoic acid first
- Rank 1
Vitamatic
Alpha Lipoic Acid
Alpha-lipoic acid · Powder
80Good qualityCountry not stated4.5¢per 300 mg
Lowest
- Pack
- $14.99167 servings
- Alpha-lipoic acid per serving
- 600 mg
- Pack lasts
- 334 daysif you take 300 mg a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 2
Best Naturals
Alpha Lipoic Acid, 600 mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA5.8¢per 300 mg
30% more
- Pack
- $27.96240 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 240 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 3
Vitamatic
Alpha Lipoic Acid
Alpha-lipoic acid · Capsules
85Good qualityMade in USA7.1¢per 300 mg
58% more
- Pack
- $16.99120 capsules60 servings
- Alpha-lipoic acid per serving
- 1,200 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (600 mg) a day
vitamaticusa.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 4
Vitamatic
Alpha Lipoic Acid
Alpha-lipoic acid · Capsules
85Good qualityMade in USA7.1¢per 300 mg
58% more
- Pack
- $16.99240 capsules120 servings
- Alpha-lipoic acid per serving
- 600 mgin 2 capsules
- Pack lasts
- 240 daysif you take 1 capsule (300 mg) a day
vitamaticusa.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 5
Amazing Nutrition
Amazing Formulas Alpha Lipoic Acid - 600 Mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA7.7¢per 300 mg
72% more
- Pack
- $36.99240 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 240 daysif you take 1 capsule (600 mg) a day
amazingnutrition.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 6
Best Naturals
Alpha Lipoic Acid, 600 mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA8.1¢per 300 mg
80% more
- Pack
- $19.35120 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 7
Vitamatic
Alpha Lipoic Acid (ALA)
Alpha-lipoic acid · Capsules
85Good qualityMade in USA8.3¢per 300 mg
85% more
- Pack
- $9.99120 capsules60 servings
- Alpha-lipoic acid per serving
- 600 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (300 mg) a day
vitamaticusa.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 8
Vitamatic
Alpha Lipoic Acid
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated8.3¢per 300 mg
86% more
- Pack
- $19.99240 capsules120 servings
- Alpha-lipoic acid per serving
- 600 mgin 2 capsules
- Pack lasts
- 240 daysif you take 1 capsule (300 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 9
Amazing Nutrition
Amazing Formulas Alpha Lipoic Acid - 600 Mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA8.3¢per 300 mg
86% more
- Pack
- $19.99120 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (600 mg) a day
amazingnutrition.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 10
Best Naturals
Alpha Lipoic Acid 600 mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA8.3¢per 300 mg
86% more
- Pack
- $39.99240 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 240 daysif you take 1 capsule (600 mg) a day
shopbestnaturals.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 11
Vitamatic
Alpha Lipoic Acid
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated8.7¢per 300 mg
94% more
- Pack
- $20.90120 capsules60 servings
- Alpha-lipoic acid per serving
- 1,200 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 12
Best Naturals
Alpha Lipoic Acid 600 mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA9.2¢per 300 mg
104% more
- Pack
- $21.99120 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (600 mg) a day
shopbestnaturals.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 13
Amazing Nutrition
Alpha Lipoic Acid, 600 mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA9.6¢per 300 mg
114% more
- Pack
- $23.09120 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 14
Doctor's Best
Alpha-Lipoic Acid 600, 600 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated9.7¢per 300 mg
117% more
- Pack
- $34.99180 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 180 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 15
Doctor's Best
Alpha-Lipoic Acid 600 600 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated9.7¢per 300 mg
117% more
- Pack
- $34.99180 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 180 daysif you take 1 capsule (600 mg) a day
drbvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 16
Best Naturals
Alpha Lipoic Acid 600 mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA$0.10per 300 mg
123% more
- Pack
- $11.9960 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (600 mg) a day
shopbestnaturals.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 17
Healthy Origins
Alpha Lipoic Acid, 600 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.10per 300 mg
123% more
- Pack
- $29.99150 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 150 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 18
Healthy Origins
Alpha Lipoic Acid 600mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.10per 300 mg
123% more
- Pack
- $29.99150 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 150 daysif you take 1 capsule (600 mg) a day
healthyorigins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 19
Amazing Nutrition
Amazing Formulas Alpha Lipoic Acid - 300 Mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.11per 300 mg
141% more
- Pack
- $12.98120 capsules
- Alpha-lipoic acid per serving
- 300 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (300 mg) a day
amazingnutrition.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 20
Amazing Nutrition
Amazing Formulas Alpha Lipoic Acid - 600 Mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA$0.11per 300 mg
141% more
- Pack
- $12.9960 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (600 mg) a day
amazingnutrition.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 21
Nutricost
Alpha Lipoic Acid Capsules
Alpha-lipoic acid · Capsules
85Good qualityMade in USA$0.12per 300 mg
160% more
- Pack
- $27.97240 capsules120 servings
- Alpha-lipoic acid per serving
- 600 mgin 2 capsules
- Pack lasts
- 240 daysif you take 1 capsule (300 mg) a day
nutricost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 22
Amazing Nutrition
Amazing Formulas Alpha Lipoic Acid - 300 Mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA$0.12per 300 mg
160% more
- Pack
- $27.99240 capsules
- Alpha-lipoic acid per serving
- 300 mgin 1 capsule
- Pack lasts
- 240 daysif you take 1 capsule (300 mg) a day
amazingnutrition.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 23
Toniiq
Alpha Lipoic Acid 1000
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.12per 300 mg
178% more
- Pack
- $24.97120 capsules60 servings
- Alpha-lipoic acid per serving
- 1,000 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 24
Force Factor
Alpha Lipoic Acid, 600 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.12per 300 mg
178% more
- Pack
- $14.9960 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 25
Best Naturals
Alpha Lipoic Acid 300 mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA$0.12per 300 mg
178% more
- Pack
- $14.99120 capsules
- Alpha-lipoic acid per serving
- 300 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (300 mg) a day
shopbestnaturals.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 26
Micro Ingredients
Alpha Lipoic Acid
Alpha-lipoic acid · Softgels
85Good qualityCountry not stated$0.12per 300 mg
178% more
- Pack
- $24.99300 softgels100 servings
- Alpha-lipoic acid per serving
- 600 mgin 3 softgels
- Pack lasts
- 150 daysif you take 2 softgels (400 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 27
Healthy Origins
Alpha Lipoic Acid 300mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.13per 300 mg
197% more
- Pack
- $19.99150 capsules
- Alpha-lipoic acid per serving
- 300 mgin 1 capsule
- Pack lasts
- 150 daysif you take 1 capsule (300 mg) a day
healthyorigins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 28
Source Naturals
Alpha Lipoic Acid, 600 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.13per 300 mg
200% more
- Pack
- $32.30120 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 29
Doctor's Best
Alpha-Lipoic Acid 300 300 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.14per 300 mg
209% more
- Pack
- $24.99180 capsules
- Alpha-lipoic acid per serving
- 300 mgin 1 capsule
- Pack lasts
- 180 daysif you take 1 capsule (300 mg) a day
drbvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 30
Source Naturals
Alpha Lipoic Acid, 600 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.14per 300 mg
214% more
- Pack
- $16.9260 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 31
Doctor's Best
Alpha-Lipoic Acid 600, 600 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.14per 300 mg
215% more
- Pack
- $16.9960 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 32
Doctor's Best
Alpha-Lipoic Acid 600 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.14per 300 mg
215% more
- Pack
- $16.9960 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (600 mg) a day
drbvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 33
NatureWise
Alpha Lipoic Acid
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.14per 300 mg
215% more
- Pack
- $16.99120 capsules60 servings
- Alpha-lipoic acid per serving
- 600 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (300 mg) a day
naturewise.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 34
Doctor's Best
Alpha-Lipoic Acid 300, 300 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.14per 300 mg
219% more
- Pack
- $25.74180 capsules
- Alpha-lipoic acid per serving
- 300 mgin 1 capsule
- Pack lasts
- 180 daysif you take 1 capsule (300 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 35
Nutricost
Alpha Lipoic Acid
Alpha-lipoic acid · Capsules
85Good qualityMade in USA$0.15per 300 mg
233% more
- Pack
- $17.95120 capsules60 servings
- Alpha-lipoic acid per serving
- 600 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (300 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 36
Best Naturals
Alpha lipoic acid 200mg
Alpha-lipoic acid · Capsules
80Good qualityMade in USA$0.15per 300 mg
234% more
- Pack
- $11.99120 capsules
- Alpha-lipoic acid per serving
- 200 mgin 1 capsule
- Pack lasts
- 60 daysif you take 2 capsules (400 mg) a day
shopbestnaturals.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 37
Micro Ingredients
Alpha Lipoic Acid 600mg
Alpha-lipoic acid · Softgels
85Good qualityCountry not stated$0.15per 300 mg
234% more
- Pack
- $29.99300 softgels100 servings
- Alpha-lipoic acid per serving
- 600 mgin 3 softgels
- Pack lasts
- 150 daysif you take 2 softgels (400 mg) a day
microingredients.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 38
Swanson Vitamins
Alpha Lipoic Acid
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.16per 300 mg
253% more
- Pack
- $18.9960 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (600 mg) a day
swansonvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 39
Swanson Vitamins
Alpha Lipoic Acid, 600 mg
Alpha-lipoic acid · Capsules
80Good qualityCountry not stated$0.16per 300 mg
263% more
- Pack
- $19.5660 capsules
- Alpha-lipoic acid per serving
- 600 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 40
Nutricost
Alpha Lipoic Acid Capsules
Alpha-lipoic acid · Capsules
85Good qualityMade in USA$0.17per 300 mg
271% more
- Pack
- $19.97120 capsules60 servings
- Alpha-lipoic acid per serving
- 600 mgin 2 capsules
- Pack lasts
- 120 daysif you take 1 capsule (300 mg) a day
nutricost.com (opens in a new tab)Checked Nov 1, 2026 · Label
Good to know
- Fact
- 7,699%more per 300 mg for the most expensive product than for the cheapest.
- Fact
- 1,292%more per 300 mg for the cheapest r-lipoic acid than for the cheapest alpha-lipoic acid.
How we checked: one-time price for each size in the store’s US online shop, before sales tax and shipping, without subscriptions or coupons. Prices change often, so check the store before you buy. More on how we check
The amount we compare by only makes products comparable – it is not a dosage recommendation. Not medical advice.
How we calculate
Cost per dose = price ÷ (servings × amount per serving) × comparison amount. Example: $119.99 for 74 servings with 24 g of protein each is 1,776 g of protein. $119.99 ÷ 1,776 g × 30 g = $2.03 per 30 g of protein.
Found a mistake or a product we should add? Email us